« Volver al listado

CVE-2026-77615

Estado: AplazadaAlta (8.7)—

Paella Player is a set of libraries to create a multi stream video player. Prior to Paella Player 2.12.11 (as used in Opencast prior to 19.7 and 20.2), there is a potential XSS attack though closed captions cue text. This vulnerability is fixed in 2.12.11.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

XSS en subtítulos de Paella Player (CWE-79) permite inyectar scripts maliciosos. AV:N, UI:R indican ataque drive-by mediante contenido causando ejecución de código JavaScript y potencial modificación de datos en contexto web.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Restrict Web-Based ContentUser TrainingExecution PreventionBehavior Prevention on EndpointEncrypt Sensitive InformationDisable or Remove Feature or Program

Tecnologías afectadas (2)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Opencast — OpencastAIPaella — Paella PlayerAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-77615",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-77615",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-22T01:48:31.414907Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.7,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.8,
        "exploitabilityScore": 2.3
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "opencast",
          "product": "opencast",
          "versions": [
            {
              "status": "affected",
              "version": "< 19.7"
            },
            {
              "status": "affected",
              "version": ">= 20.0, < 20.2"
            }
          ]
        },
        {
          "vendor": "polimediaupv",
          "product": "paella-player",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.12.11"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-09-17T21:17:38.557",
  "references": [
    {
      "url": "https://github.com/opencast/opencast/commit/701682c635f668228c3e8fb7b4564b3294788e40",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/opencast/opencast/pull/7736",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/opencast/opencast/releases/tag/19.7",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/opencast/opencast/releases/tag/20.2",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/opencast/opencast/security/advisories/GHSA-m6c8-jcw2-5r25",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/polimediaupv/paella-core/commit/94a36490808ac5a1f60a0745d71ec9253f6d206b",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/polimediaupv/paella-core/commit/9b2f14ec4cf55efaf4c045c77a5ed8f5ec559ab4",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/polimediaupv/paella-player/blob/a1b6c42467938a00a4b4d0b8c68435cd4f9d2a16/repos/paella-core/CHANGELOG.md?plain=1#L21",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/polimediaupv/paella-player/commit/6fe4af7306044198c8e91e2e7f4128428b83cf03",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/opencast/opencast/security/advisories/GHSA-m6c8-jcw2-5r25",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Paella Player is a set of libraries to create a multi stream video player. Prior to Paella Player 2.12.11 (as used in Opencast prior to 19.7 and 20.2), there is a potential XSS attack though closed captions cue text. This vulnerability is fixed in 2.12.11."
    }
  ],
  "lastModified": "2026-09-24T21:25:27.050",
  "sourceIdentifier": "security-advisories@github.com"
}